Welding machine



New. 8, 1932.

c, L.. ROWLAND 1,886,838

WELDING MACHINE Original Filed Jan. 27'. 192$ Till- 6 Sheets-Sheet 1 EdwaniL/ .Delave fxfcura/z.

Nov. 8, 1932. C, ROWLAND www@ WELDING MACHINE Original Filed Jan. 27, 1926 6 Sheets-Sheet 2 NGV 3f 1932- c. L, Rom/LAND 1,886,838

WELDING MACHINE Original Filed Jan. 27. 1926 6 Sheets-Sheet 5 gnou/1to1,

Sticht/m13 v1\1 w.8,193?. 'Cp L. Row-LAND Lsss WELDING MACHINE original Filed Jan. 27, 192e e seeussheet 4 Nov. 8, 1932. c. l.. RowLAND WELDING MACHINE original Fired Jan. 27, 192e e sheets-sheet 5 g n vc n jC01: rbd/7, 0565/1551. Zarza', xfa/mem. .galla/zeug fxfcz/ ma.

M .DM L .A am w ,gw

@Hoang Nov. 8, 1932. c. L. ROWLAND 1A,886,838

WELDING MACHINE Original Filed Jan. 27, 1926` 6 Sheets-Sheet 6 mi rig-1U- Patented Nov.' 8, 1932 enel-amis nowtnnn, Dncnnsnn, LATTE or cnnn'ennnlin, "rnnnsnvnnrn, nv narn- 'n-YN .anon/"nenn, nxlncnmnm, or cnnieoninn'nn, rnnnsvnvnnre, Ann nnwnnn A. nn LANEY, nxnonmon, or onR'BonnALn,frENNsYLVAnIn, Asscrnonfro ninna;- cnn' wmnineconrnnir, for oannofnnarn, 'rnnnsY'ivAnia noonronnrtcnor DELAWARE y' 1 WEL'D'ING MAHINE (nagaan application inea January l27, 192e, :serial fno. `lsaaie/.1.. bitlaea'an'a Vthis, alienation med Aprnea :1930. serilnoneeazss. Y

This inventionrelates generallyto welding machines and has iorone obj ectthe'provision ofilnieans for welding-abranch orneck at an 'angle to a pipe ortank, thoughobviously'the invention shown is capable of use mother fields. s n Y' The presenta'pplication is a tdivlsion tof a 'prior application Serial -No.l84,184,`tiled Ta-nnary27, 1926, allowed December 19, 1929, and contemplates the provision of anew-and 11m'- fproved welding apparatus.

`Another object of the invention is the provision of Aa welding machine having means for externally and internally Vheating parte -to be welded together prior to thenpphcation'of a welding tool. l

A further object ofthe present invention is lthe provision cfa new and improved type o' furnace for heating parts to be `welded.

Other objects and advantages of lthis jinvention will Vbe apparent tfrom the fo'llowing "description v`taken in conjunction with the accompanying drawings, lin which: f

ilig. l is `an elevation of the device with certain .parts being shown -in section. y

Fig. 2 `is a vertical sectional viewfthrou'gh the machine of the present invention; the fv'iewalso showing'work associatedtherewith.

3 is atop plan view of the machine.

slig. l is a top plan View 'of the fmachine 'with certain parts broken away; the view 'showing the'furnaces in heating position.

5 is a `fragmentaryviewof va portion' 4of the machine, certain'parts being 4shown -in section.

`F ig. 6 is adetailed View of aportion'oflthe lniac'hine, showingv an end view 'of the weld- -ingroller and its mounting, the view/"being italien in the direction of the arrow in Fg?. Fig. 7 is a top plan .view of vthe machine with the'furnace equipment removed.

A Fig. 8 is 'a sectional View of the l'ine 8;-8,

Fig. 9 is affragmentary verticalsectional View 'through the center `of the device, show- `ing one specific arrangementof the pneumatic litt and the interior furnace equipment and welding roller, and K Fig. 10 is a view similar to Fig. -9, `but showing a niodica'tionof thezparts lin ysaid `FigfQ. v v

Referring Ynow more .particularly to the drawings, 1the machine of the present invention is adaptedto weld a neck` or ibranchonto a tank, and referring to Fig-r1, a tubular element which =1nay V-be a tank body is k'shown as 'the work, the same 'being indicated at -2 and being supported in ia work holder 4 ot' any preferred 'or desired construction.v

The work holderis only illustrated 'fragmentarily and the tank .2 issh'o'wn las 'provided with anop'en'ing and a pre'fr'rned'an'- nular lflange 6 (see Fig. 2), towhichg-latter a'neckvS is to be welded. Obviouslyfthelnecl 8 and iiangev arelar'ranged yinabutting*relation and the lneck S8 is supported infcontact 'i with the '-langefin anysuitable manner.

The machinefoi" the present 'invention Sconr- 'pr'ises a base 10 which is lshown vas tubular andl cylindrical, and on the "upper edge of.

said base `a circular 'track 12 is mounted, on

Y 'which :latter the furnace L'e011i'ipinentcarrier indicated generally iat Avis fmounted torro- 4tation. v

|The carrier A is, 1in' effect, ia'iot'a'table turret and 'includes 'an kannular inverted channel 14 having "rollers i6 -jou'rn'al'ed betwe'en the spaced flanges thereof, which rollers ride on the trackl2 'as 'shown clearly `in Fi'g-12. AFo: rotating the carrier A =a ring 'gear f2() -is'secured to the channel 'll to be engaged by 'a vpinion 22on the upper "end of a'fsha'ft 24 supported in bearings 26v VVwhich are tormedas parts of a bracket 28, ibolted "to the base as vat 30; the shaft 124 "beingrotatable by a pinion 32 connected to any suitable source of power.

The annular channel Y14 iin'ight'be termed -a turret truck,-and secured thereto is the itur- Iret -ftop 34 having an 'upperwall 3G land -a supporting base 38; the wall 36 being provided with an opening vand 'a 'depending flange 40 therearound. l? or stiif'ening punv c `poses ribs Ll2 extend from thexsupporting base 438 to the "ian'gedO 'as shown fclea'rly in Fig. 2. The flange'tO positions "thelylinder lll-foi a pneumatic.liffthavingfa rain 46,'t'he purpose of which will -be hereinafter more clearly [pointed out.

Suitable exterior furnace equipment is provided, which, in the instance shown, comprises furnaces 48 and 50 respectively (see Figs. 3 and 4) which are segmental in shape and which, when in heat-applying position as shown in Fig. 4, surround the work; that is, they surround the ange 6 and'neck 8 kat the juncture Tor meeting edges thereof, as clearly shown in Fig. 2. The furnaces do not completely and entirely surround the work,

but they substantially surround Vthe work and leave an intervening gap 52. The fur-' naces are mounted on carriages 54, having rollers 56 adapted to travel on curved tracks 58 and have fuel nozzles 60 carried by the carriages and leading into the furnaces, (see Fig. 1). The tracks 58 are mounted on the upper wall 36 of the turret top 34Yand the j fuelnozzles 60 are connected to pipes 62 leading to a' branch pipe 64 whichlatter is connected to a main fuel pipe 66; the connection of the pipes 62 with the branch 64 being a flexible one to permit shifting of the furnaces48 and 50 and the pipes 62 with reinclude upper flanges 8Oy and supporting flanges 82, and as shown in Fig. 5, the flanges 82 also support a slide 84, having a piston 86, which is arranged in the cylinder 74, and said piston may be shifted longitudinally for adjustment with respect to the cylinder on the flanges 82. For retaining the piston in a predetermined position pins 88 are -provided, which extend through the slide 84 and project between upstanding flanges 90 formed in a base plate 92, which is arranged between the guides 76. It'will be apparent from the description just given that by admitting fluid under pressure to either side of the piston 86, the roller 68 is moved toward or away from the Work, and to permit the admission of fluid to the cylinder, the latter .is provided with flexible hose connections 94V which lead to either side of the piston respectively. The connections94 have their opposite ends connected to a four way valve 96 and receive fluid under pressure from a main intake pipe 98 which discharges into a .header 99 leading to the valve'96 (see Fig.

7) and which also is connected to a valve 101. From the description just given it is apparent that operation of the valve lever 103 will admit fluid under pressure to either end of the cylinder as desired. Leading from the valve 96 is an exhaust pipe 105 whereby, when fluid under pressure is being admitted to one end of the cvlinder. the fluid from the other end of the cylinder may be discharged from said cylinder into the exhaust pipe.

It has been 4found desirable to supply heat to the interior ofhollow-worksuch as shown .in the drawings and in the present instance an interior furnaceequipment and a welding vmember are mounted at the upper end of the ram 46. This construction is clearly shown inl Fig. 2 and Figs.9 and 10, which disclose modified constructions. The interior .furnace is indicated at 102 and (in Fig. 2) it "is shown as supported on rods 104 which are secured to the upper surface of an inner weldingkmember 106. The member 106 may assume any preferred or desired form and is mounted on the upper end of the ram 46 in such a position that when the ram 46 is elevated to the position shown in Fig. 9 the .member 106 will contact with the work vat a point opposite the point of contact of the roll or welding member 68.

For elevating the ram 46 fluid under pressure is admitted to the lower end of the cylinder 44 through a pipe 108 which discharges below the lower end of the ram and which has its opposite end connected to the valve 101 which, as before mentioned, is adapted to receive fluid under pressure from the pipe 99. 'Ihe valve 101 is provided with-an operating lever 105 and is also provided with an exhaust pipe 107 whereby upon operation of the .lever 105, the ram 46 may descend because of the fact that the fluid may escape from the pipe 108 back to the valve 101 and then out through the exhaust 107.

Fig. 2 discloses one form of the connection of the inner welding member 106. In Figs. 9 and 10 are shown modified forms of this arrangement. In Fig. 9 the inner welding member 106 is concentric with the rain 46 but the burners 102 areal-ranged eccentrically with respect to the welding member 106. In this construction the furnace 102 has fuel fed to it from the top through pipes 108 and 110 Y and it is to be understood -that these pipes may be flexible or that suitable joints are formed in the connections in case the furnace revolves. In Fig. 10 substantially the same construction as shown in Fig.v 9 is disclosed, the main difference being that the distributor heads H, hereinafter more particularly described, are offset with respect to the ram 46 andare in line with the furnace 102.

In the construction shown in Fig. 2 fuel for the burners 102 is received from the fuel pipe 112 which is connect-ed to the pipe 66, one end of which latter is connecd, as before mentioned, to the branch 64. rIhe other end of pipe 66 leads to a cylinder 114 which telescopically receives one end of a pipe 116 the other end -of which latter extends to a nozzle 118 which feeds the furnace 102. The

burners 102 heat the entire inner circumv ference of the tubular work along the line to ne Ov be welded; As before mentioned, the Welding roller 106 contacts with the inner surface of the work Vat only one point and the contactingA point is opposite the contacting point of the roller 68. This accounts for the specific said pipe 98 is free to rotate. 124 indicates a gas fuel pipe which leads to a distributor head.. 126. The distributor head 126 is secured to the lower end of a fitting 128 bolted to the lower end of the cylinder 44, as shown at 130. The feed pipe 112 is connected to the fitting 128 as shown clearly in Fig. 2, and receives fuel from the pipe` 124 which has passed `into the distributor head 126. For supporting the pipes 120 and 124 and their associated distributor heads, a suitable bracket 132 is provided which is supported on the bas-e 134 which, in the instance shown, is a floor or the like. From the description just given it is apparent that rotation of the turret will rotate the cylinder 44 andthe pipes 98 and 112 are free tu rotate also for the reason that the connections `of the distributor heads 126 with the fitting 128 and the distributor head 122 with the lower end of pipe 98 is one which permits rotation.

Secured to the turret in any suitable manner is an operators cage 136 which rotates with the turret.

In operation, the work to be acted onis placed in position on the work-holder and the neck 8 is temporarily supported in any desired manner. The welding members 68 and 106 are withdrawn from their welding positions and the exterior and interior furnaces areignited and placed in position. The parts are then in the position indicated: in Fig. 2. Rotation is now imparted tothe car,- rier and the exterior and interior furnaces will be rotated whereby the workis heated at the juncture of the neck and flange Sand 6 respectively; This continues until` the work has reached a welding heat, when the valves 96 and 101 are operated to pernrit Huid under pressure to raise the ram 46 and to shift the cylinder 7 4 until the tool or roller 68 engages the work as shown in Fig. 5 ,the roller 68 extending` into the gap 52 between the furnaces 48 and 50. Continued rotation of the carrier, it will be apparent, will cause the opposed welding tools 68 and 106 to act on the work in a manner such Vas shown inV Fig. to weld the neck and iiange 8 and? 6 respectively together, as shown'clearly in Fig. 1. The rollers or welding tools are then with drawn by manipulation of the valves 96 and 101 and the furnaces extinguished and rotation of theoar'rier stopped. Following this theV exterior furnaces 48 50 may be swung tothe position shown in Fig. 3 and the work withdrawn from its holder 4. Y v

From the drawings andthe above description it is believed that the device will be fully apparent to those skilled in the art, but it is to be understood that the drawings are for illustrative purposes only and various. changes in the form proportions' of the machine may bein-ade within the scope of the appended claims without departing from the spirit of the invention. l

What is claimed is: i 1 ,A

. 1. In a heating apparatus, in combination,

a work holder to support hollow work, means for heating the work comprising an exterior furnace equipment surrounding the work, an interior furnace equipment within the work, and transmission devices to effect, during the heating action of said furnace equipments, arelative rotating movement between the exterior furnace equipment and the work hold-er one with relation to the other.

2. in a heating apparatus, in combination, a work holder to support hollow work, means for heating the work comprising an 'exterior furnace equipment surrounding the work, an interior furnace equipment within the work, and transmission devices-to effect, with respect to the exterior and interior furnace equipments as one element and the work holder as another element, and duringthe heating action n ofsaid furnace equipments a relative rotating movement one with relation to the other.

3. In a heating apparatus, in combination, a: work holder to support hollow work, means for heating the work comprising an exterior furnace'equipment surrounding the work, an interi-or furnace equipment within the work, and transmission devices toeect,during the heating action of said furnace equipments, a rotating movement of the exterior furnace equipment with relation to the work holder.

4'.- ln` a heating` apparatus, in combinationq work holder to support hollow work, means for heating the work Comprising an exterior furnace equipment surrounding the work,

an interior f-urnace equipment within the work, andtransmission devices to effect, dur'- ing theheating action of said furnace equip--V ments, a1 rotating. movement of the exterior and interior furnace equipments with relation to' the Workholder.

5. Iny combination, a furnace equipment comprising independent burners adapted to substantially surround the work to be welded, meansl for adjusting each of said burners relative tothe work, rotatable meanssupporting said burners for rotation around the work, andan internalburner for heatingjthe interior of the worin l i 1 6i In combination, aY furnace equipment comprising independent burners adapted to I.

iao

substantially surround the Work tol be Welded, means for horizontally adjusting each of saidburners relative to the Work, rotatable means supporting said burners for rotation around the Work, and an internal burner for heating the interior of the Work.

7. In combination, a furnace equipment comprising independent burners adapted to substantially surround thevfork tobe Welded, means for horizontally adjusting eachl of said burners relative to the Work, rotatable means supporting said burners for rotation around the Work, and a. vertically adjustable internal burner. Y

S. In combination, a furnace equipment comprising a multi-part heating unit for heating the exterior surface of the Work, said unit substantially surrounding the Work and the parts thereof being individually adjustable to vary the heating action of said unit, a second heating unit extending into the Work and vertically adjustable relative thereto, and transmission devices for effecting rotation of the multi-part heating unit around the Work.

9. In combination, a furnace equipment comprising` a multi-part heating unit for heating the exterior' surface of the Work, said unit substantially surrounding the Work and the parts thereof being individually adjustable to vary the heating action of said unit, a second heating unit extending into the Work and vertically adjustable relative thereto, and transmission devices for effecting rotation of the multi-part heating unit and the second heating unit relative to the Work.

l0. In combination, a furnace equipment comprising a multi-part heating unit lfor vhea-ting the exterior surface of the Work, said unit substantially surrounding the Work and the parts thereof bein 0' individually adj ust-` able to vary the heating action of said unit on the Work, a second heating unit for the invterior of the Work, rotatable supporting means for said multi-part heating unit` to effect rotation of said unit around the Work, and vertically adjustable supporting means for said second heating unit for positioning the latter relative to the Work.

l1. In combination, a furnace equipment comprising a multi-part heating unit for heating the exterior` surface of the Work, said unit substantially surrounding the Work and the parts thereof being individually adjustable to vary the heating action of said unit on the Work, a second heating unit for the interior of the Work, rotatable supporting means for said heating units for effecting rotation thereof around the Work, and vertically adjustable supporting means for said second heating unit for positioning the latter relative to the Work.

l2. In combination, a rotatable turret, spaced pairs of tracks on said turret, a pair of burners, carriages ontvhich said burners are mounted adapted to travel'on said tracks,

and fuel connections extending to the burners'.

13. In combination, a rotatable turret, spaced pairs of tracks on said' turret, a pair of burners, carriages on Which said burners are mounted adapted to travel on said tracks, and fuel connections extending tothe burners, said'connections beingmovable With the turret.

14e. In combination, va Work holder, a turret, and means for heating the Work comprising a pair of burners adapted to surround the Work, carriages on Which the burners are mounted, tracks for the carriages and on which the latter are individually horizontallyrshiftable toward and away from the `Work, and fuel pipes vfor the burners.

l5. In combination, a work holder,a turret, tracks on the turret, a pair of burners movable on the tracks and adapted to surround the Work, a lift carried by the turret, a burner supported by the lift and adapted to be elevated relative to the Work by said lift, fuel connections leading to the burners, and transmission devices to effect rotation of said turret and burners With respect to the Work.

16. In combination, a holder for supporting-the Work, a turret, tracks on the turret, a pair of burners individually shiftable on the tracks for varying the heating position of saidburners relative to the Work, a lift carried by the turret, a burner suported by the lift and adapted to be vertically adjusted relative t'o the Xvorkby said lift, and transmission devices to effect rotation of the turret and burners relative to the Work;

i7. In combination, a Work holder, a turret, an interior furnace carried by the turret and adapted to be vertically adjusted relative 'to the Work, and exterior furnace equipment supported by the turret 'and shiftable horizontally thereon to vary the position of said exterior furnace equipment relative to 'the Work.

18. Incombination, means for supporting hollow Work, a turret, and interior-furnace equipment supported by the turret, a multipart exterior furnace equipment carried by lthe turret` means mounted on the turret and to which exterior'furnace equipment is connected for shifting the parts o-f said exterior furnace equipment horizontally on the turret, and transmission devices for rotatingthe turret and furnace equipments relative to the Work.

19. A heating apparatus comprising a Work holder, a rotatable turret adjacentthe Work holder, curved tracks on said turret, segmental-shape furnaces movable on said tracks, a flexible fuel connection carried by said turret to feed the furnaces, a fuel connection extraneous of the turret, and a joint between the fuel connections carried by and extraneous of the turret to effect rotation of the latter.

. 20. A heating apparatus comprising a Work holder, a rotatable carrier adjacent the Work holder, a. furnace equipment on the carrier to surround the work, a fuel connection also on the carrier to feed the furnace equipment, a fuel connection extraneous of the carrier, and a joint between the fuel connections carried by and extraneous of the carrier to effect rotation of the latter.

2l. A heating apparatus comprising awork holder, a rotatable carrier adjacent the Work holder, an exterior furnace equipment on the carrier and adjustable thereon toward and away from the Work on the Workk holder, a flexible fuel connection on said carrier to feed the furnace equipment, a fuel connection extraneous of the carrier, and a joint between the fuel connections carried by andeXtraneous of the carrier to effect rotation of the latter.

In witness whereof, we have hereunto set our hands.

. KATHRYN E. ROWLAND,

E meca/trim. EDWARD A. DE LANEY, Eeeutor. Charles L. Rowland, Deceased. 

